Matt

The Matt is a copper and molybdenum mine located in Snohomish county, Washington at an elevation of 4,800 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Matt

Commodity

Primary: Copper
Primary: Molybdenum

Location

State: Washington
County: Snohomish
District: Silver Creek District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: In Snoqualmie National Forest

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Cities Service Co. (Circa

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains

Mineral Deposit Model

Model Name: Porphyry Cu

Orebody

Form: DISSEMINATED

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Miocene

Analytical Data

Analytical Data: DRILL CORE ASSAYED 0.01-0.27% CU, AND UP TO 0.027% MO

Materials

Ore: Pyrite
Ore: Pyrrhotite
Ore: Chalcopyrite

Comments

Comment (Reserve-Resource): TOO LOW GRADE TO BE ECONOMIC

Comment (Deposit): THIS MAY BE PART OF THE SAME MINERALIZING SYSTEM AS AT SEACREST DEPOSIT WHICH IS LESS THAN 1 MI TO THE NORTHWEST

Comment (Workings): DRILL CORE ONLY, TOTALING 2,132 FT

Comment (Deposit): SEE ALSO MRDS RECORD MP00033

References

Reference (Deposit): JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULLOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACIER PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 36.

Reference (Deposit): TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE 1:100,000.

Reference (Reserve-Resource): JOHNSON AND OTHERS, 1983

Washington Gold

"Where to Find Gold in Washington" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Washington.